As urbanization continues to rise, the need for sustainable urban environments becomes increasingly urgent. CleanTech is essential in developing smart cities that prioritize efficiency, sustainability, and quality of life for residents. Smart grid technologies are revolutionizing energy distribution in urban areas. By integrating renewable energy sources, energy storage, and advanced monitoring systems, smart grids can optimize energy usage and reduce emissions. This integration allows cities to manage energy demand more effectively and improve overall energy efficiency. Transportation in smart cities is also being transformed through CleanTech innovations. Electric public transit systems, shared mobility services, and smart traffic management systems are enhancing urban mobility while reducing congestion and emissions. Moreover, CleanTech solutions are improving urban infrastructure through sustainable building practices. Green building technologies, such as energy-efficient designs and sustainable materials, contribute to reduced energy consumption and lower environmental impact. By embracing CleanTech innovations in smart city development, urban areas can create livable, sustainable environments that prioritize the well-being of residents and the health of the planet.